CVE-2022-21648

Name: CVE-2022-21648
Creator: NVD / NIST
Published: 2022-01-04T20:15:08.003+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.82%

Last modified Jun 17, 2026

CVE-2022-21648 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Latte is an open source template engine for PHP. Versions since 2.8.0 Latte has included a template sandbox and in affected versions it has been found that a sandbox escape exists allowing for injection into web pages generated from Latte. EPSS estimates a 0.82% chance of exploitation in the next 30 days.

Description

Latte is an open source template engine for PHP. Versions since 2.8.0 Latte has included a template sandbox and in affected versions it has been found that a sandbox escape exists allowing for injection into web pages generated from Latte. This may lead to XSS attacks. The issue is fixed in the versions 2.8.8, 2.9.6 and 2.10.8. Users unable to upgrade should not accept template input from untrusted sources.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.82%

52.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nette	Latte	>= 2.8.0, < 2.8.8
Nette	Latte	>= 2.9.0, < 2.9.6
Nette	Latte	>= 2.10.0, < 2.10.8

References

https://github.com/nette/latte/commit/9e1b4f7d70f7a9c3fa6753ffa7d7e450a3d4abb0Patch, Third Party Advisory
https://github.com/nette/latte/security/advisories/GHSA-36m2-8rhx-f36jThird Party Advisory
https://github.com/nette/latte/commit/9e1b4f7d70f7a9c3fa6753ffa7d7e450a3d4abb0Patch, Third Party Advisory
https://github.com/nette/latte/security/advisories/GHSA-36m2-8rhx-f36jThird Party Advisory

Timeline

Published: Jan 4, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-21648?

How severe is CVE-2022-21648?

CVE-2022-21648 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.82% probability of exploitation in the next 30 days.

How do I fix CVE-2022-21648?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-21648?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST